package com.atguigu.springCloud.service;

import cn.hutool.core.util.IdUtil;
import com.netflix.hystrix.contrib.javanica.annotation.HystrixCommand;
import com.netflix.hystrix.contrib.javanica.annotation.HystrixProperty;
import org.springframework.stereotype.Service;

import java.util.concurrent.TimeUnit;

@Service
public class PaymentService {

    //服务降级
    /**
     * @auther zgw
     * @date 2020/3/26 20:27
     * @descript
     * @param No such property: code for class: Script1
     * @return
     */
    public String paymentInfo_OK(Integer id) {
        return "线程池："+Thread.currentThread().getName()+"paymentInfo_OK,id:"+id+"\t"+"O(∩_∩)O";
    }

    @HystrixCommand(fallbackMethod = "paymentInfo_TimeOutHanlder",commandProperties = {
                    @HystrixProperty(name="execution.isolation.thread.timeoutInMilliseconds",value = "5000")})
    public String paymentInfo_TimeOut(Integer id) {

        //延迟3秒
        int timeNum = 3;
        int age = 10/0;
        try{
            TimeUnit.SECONDS.sleep(timeNum);
        }catch(InterruptedException e) {
            e.printStackTrace();
        }
        return "线程池："+Thread.currentThread().getName()+"paymentInfo_TimeOut,id:"+id+"\t"
                +"O(∩_∩)O,耗时";
    }


    public String paymentInfo_TimeOutHanlder(Integer id){
        return "超时啦啊啊啊啊";
    }

    //服务熔断
    @HystrixCommand(fallbackMethod = "paymentCircuitBreaker_fallback",commandProperties = {
            @HystrixProperty(name = "circuitBreaker.enabled",value = "true"), //是否开启断路器
            @HystrixProperty(name = "circuitBreaker.requestVolumeThreshold",value = "10"), //请求次数
            @HystrixProperty(name = "circuitBreaker.sleepWindowInMilliseconds",value = "10000"), //时间窗口期
            @HystrixProperty(name = "circuitBreaker.errorThresholdPercentage",value = "60"), //失败率达到多少后跳闸
    })
    public String paymentCircuitBreaker(Integer id) {
        if(id<0) {
            throw new RuntimeException("id不能为负数！");
        }
        String serialNumber = IdUtil.simpleUUID();
        return Thread.currentThread().getName()+"\t"+"调用成功，流水号:"+serialNumber;
    }
    public String paymentCircuitBreaker_fallback(Integer id) {
        return "id不能为负数，请稍后再试";
    }

}
